CN111508787A - Inflatable cabinet integrated interlocking mechanism - Google Patents

Abstract

The invention discloses an integrated interlocking mechanism for an inflatable cabinet, which is mainly composed of a shutter card plate, a first interlocking arm, a closing brake assembly, a rotating assembly, a transmission assembly and a reset assembly. A first interlocking arm is arranged on the main shaft, a shutter card is connected to the operating shutter of the direct-acting three-station mechanism, and a closing brake assembly and a rotating assembly are arranged between the first interlocking arm and the shutter , transmission components and reset components, realize the function that the operation valve of the three-station mechanism cannot be opened for manual operation when the circuit breaker of the inflatable cabinet is in the closed state, and also realizes the manual operation of the three-station mechanism in the open state of the circuit breaker. During the process, the function of the circuit breaker cannot be closed. Therefore, the present invention realizes the mechanical interlocking function between the three-position isolation grounding switch and the circuit breaker of the inflatable cabinet, and has the advantages of simple structure, active interlocking, safety and reliability.

Description

Inflatable cabinet integrated interlocking mechanism

technical field

The invention relates to an interlocking mechanism, in particular to an integrated interlocking mechanism of an inflatable cabinet.

Background technique

Cabinet Gas Insulated Switchgear (Cubical Gas Insulated Switchgear), referred to as C-GIS, is a circuit breaker as the main switch, used for 10 ~ 35kV or higher voltage level of primary distribution system equipment. The inflatable ring main unit is based on the load switch as the main switch, and there are also solutions with circuit breakers, which are used in the secondary distribution system of 10 ~ 35kV. Inflatable cabinet is usually the collective name of C-GIS and inflatable ring network cabinet.

The inflatable cabinet uses the insulation technology and sealing technology of GIS to install the high-voltage components in the box-shaped sealed container, and fills the insulating gas slightly higher than the atmospheric pressure, and uses the modern advanced processing technology to make a complete set of serial products. It has control, protection, measurement, monitoring and communication functions for power distribution under fault conditions.

At present, the development of inflatable cabinets shows a trend of component combination. The isolating switch and grounding switch of some inflatable cabinet products are combined into a three-position isolating grounding switch. There are also some inflatable cabinet products that combine the three-position isolation grounding switch with the circuit breaker, which makes installation and debugging more convenient. According to the different structures, the operating mechanism of the three-station isolating grounding switch of the gas-filled cabinet is divided into a direct-acting three-station mechanism and a knife-gate three-station mechanism. The three-station mechanism is not allowed to be operated when the circuit breaker is in the closed state, and the three-station mechanism is only allowed to be operated when the circuit breaker is in the open state; and the circuit breaker cannot be closed during the operation of the three-station mechanism. Therefore, an interlock is usually provided between the three-station mechanism of the inflatable cabinet and the operating mechanism of the circuit breaker. However, in the prior art, the interlock between some three-station mechanisms and the operating mechanism of the circuit breaker is limited by three The way the output shaft of the station isolation grounding switch rotates is passive interlocking, and the reliability is poor. The interlocking between other three-station mechanisms and the operating mechanism of the circuit breaker has the problems of complex structure, complicated installation, and single interlocking method, which cannot ensure that the interlocking is in place.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned defects, the present invention provides an integrated interlocking mechanism for an inflatable cabinet, which realizes the mechanical interlocking function between the three-position isolation grounding switch and the circuit breaker of the inflatable cabinet, and has the advantages of simple structure, active interlocking and Safe and reliable advantages.

The technical scheme that the present invention adopts in order to solve its technical problem is:

An integrated interlocking mechanism of an inflatable cabinet is used to realize the interlocking between a direct-acting three-station mechanism of the inflatable cabinet and a circuit breaker operating mechanism of the inflatable cabinet, and the integrated interlocking mechanism of the inflatable cabinet includes a shutter card plate , the first interlocking arm, the closing brake assembly, the rotating assembly, the transmission assembly and the reset assembly, the shutter card plate is fixedly connected with the operating shutter of the direct-acting three-station mechanism, and the first interlocking The crank arm is fixedly connected with the main shaft of the circuit breaker operating mechanism, and the rotating assembly includes an interlocking mounting plate, a rotating shaft, an interlocking swing plate, an interlocking pin, a second interlocking crank arm and two interlocking rollers, The interlocking mounting plate is mounted on the top of the frame of the circuit breaker operating mechanism, the rotating shaft is rotatably mounted on the interlocking mounting plate, and the interlocking swing plate is mounted on one end of the rotating shaft, The second interlocking arm is fixedly connected between the other end of the rotating shaft and the interlocking pin, and the two interlocking rollers are installed on both ends of the interlocking swing plate. The locking pin is inserted and positioned in the claw at the bottom of the shutter card; the transmission assembly is arranged between the first interlocking arm and the two interlocking rollers, and the bottom end of the transmission assembly Opposite to the first interlocking arm up and down; the closing brake assembly is installed in the middle of the transmission assembly; when the circuit breaker of the inflatable cabinet is closed, the first interlocking arm on the main shaft rotates to Abutting the position of the bottom end of the transmission assembly, making the top end of the transmission assembly abut against the two interlocking rollers, to brake the rotating shaft, the interlocking pin and the shutter card , so that the operating valve cannot be opened; the circuit breaker of the inflatable cabinet is opened, and when the operating valve needs to be opened, the first interlocking arm on the main shaft rotates to a position away from the bottom end of the transmission assembly, The left and right movement of the operating shutter can drive the rotation shaft and the interlocking swing plate to rotate through the shutter card plate and the interlocking pin, so that one of the interlocking rollers drives the transmission assembly and the interlocking roller downward. The closing brake assembly makes the closing brake assembly brake the closing drive assembly of the circuit breaker operating mechanism, and makes the reset assembly store energy; the reset assembly releases the stored energy to drive the closing drive assembly The brake assembly, the transmission assembly and the rotation assembly are reset.

As a further improvement of the present invention, the transmission assembly includes a transmission rod and an interlocking plate, the interlocking plate includes a vertical plate and a horizontal plate formed on the top of the vertical plate, and the horizontal plate is arranged on two Below the interlocking rollers, the top end of the transmission rod is fixedly connected to the vertical plate, and the bottom end of the transmission rod is vertically opposite to the first interlocking arm.

As a further improvement of the present invention, two first waist-shaped holes are formed on the vertical plate, and the vertical plate is fixedly connected to the transmission rod through fasteners pierced through the first waist-shaped holes.

As a further improvement of the present invention, the reset assembly includes a fixed bent plate and a reset spring, the middle part of the fixed bent plate is mounted on the side wall of the frame of the circuit breaker operating mechanism, and the reset spring is provided on the fixed bent plate Between the two opposite arms of the bent plate, the middle of the transmission rod is movably passed through the return spring and the through holes of the two arms, and the transmission rod moves downward to compress the reset Spring stored energy.

As a further improvement of the present invention, the structure in which the transmission rod moves downward and compresses the energy storage of the return spring is as follows: a pressure pin and a pressure piece are installed on the transmission rod, and the pressure pin and the pressure piece are arranged on two Between each of the support arms, the pressing pin is installed in the pin hole on the transmission rod, the pressing piece is movably sleeved on the driving rod, and the pressing piece is positioned on the return spring. between the top end and the press pin.

As a further improvement of the present invention, the closing brake assembly includes a closing limit plate and a connecting rod, and the middle part of the closing limit plate is rotated and installed at a space in the frame of the circuit breaker operating mechanism through a pin shaft one end of the connecting rod is fixedly connected with the transmission rod, and the other end of the connecting rod is inserted into the second waist-shaped hole on the closing limit plate; the transmission rod drives the connecting rod When moving downward, the connecting rod drives the closing limit plate to rotate, so that the legs of the closing limit plate abut against the closing drive assembly.

As a further improvement of the present invention, the closing drive assembly includes a closing coil, a closing plastic part, a closing connecting plate, a closing crank arm, a closing cam and a closing spring, and the closing plastic part, closing crank The arm and the closing cam are respectively rotatably mounted on the frame of the circuit breaker operating mechanism, the closing arm has a connecting arm with an obtuse angle and a closing energy storage holding catch, and the closing cam is fixed on the closing cam roller; both ends of the closing connecting plate are respectively connected to the connecting arm of the closing plastic part and the closing arm, and the closing spring elastically contacts one side of the closing roller In the open state, the closing energy storage holding detent of the closing arm abuts on the opposite side of the closing roller; the closing coil is provided with a closing coil push rod , When closing, the foot of the closing limit plate is separated from the braking point of the closing plastic part, and the closing coil drives the closing coil push rod to push the closing coil after receiving the closing signal. The closing plastic part rotates, and drives the closing arm to rotate through the closing connecting plate, so that the closing energy storage detent is disengaged from the closing roller, and the closing spring pushes the closing The closing cam rotates and hits the main roller on the main shaft to complete the closing; in the opening state, after the operating valve is opened, the legs of the closing limit plate abut against the brake of the closing plastic part At the point, the closing coil push rod of the closing coil cannot push the closing plastic part to rotate.

As a further improvement of the present invention, the transmission rod is in a square shape, the first interlocking arm includes a disc body and a square column, the disc body is sleeved on the main shaft, and the square column is connected to the side of the disc body. On the outer edge, the square column is vertically opposite to the bottom end of the transmission rod.

The beneficial effects of the present invention are as follows: the present invention provides an integrated interlocking mechanism for an inflatable cabinet. By arranging a first interlocking arm on the main shaft of the circuit breaker operating mechanism, on the operating shutter of the direct-acting three-station mechanism Connect the shutter card plate, and set the closing brake assembly, rotation assembly, transmission assembly and reset assembly between the first interlocking arm and the shutter card plate, so that the circuit breaker of the inflatable cabinet cannot be opened when it is in the closed state. The function of the operating valve of the three-station mechanism also realizes the function that the circuit breaker cannot be closed in the process of manually operating the three-station mechanism in the open state of the circuit breaker. Therefore, the present invention realizes the mechanical interlocking function between the three-position isolation grounding switch and the circuit breaker of the inflatable cabinet, and has the advantages of simple structure, active interlocking, safety and reliability.

Description of drawings

Fig. 1 is the front view of the integrated interlocking mechanism of the inflatable cabinet of the present invention;

Fig. 2 is the perspective view of the front view of the integrated interlocking mechanism of the inflatable cabinet according to the present invention;

Fig. 3 is the perspective view of the rear view of the integrated interlocking mechanism of the inflatable cabinet according to the present invention;

4 is a schematic structural diagram of a circuit breaker operating mechanism in the present invention;

In conjunction with the accompanying drawings, the following descriptions are made:

1-Valve card plate, 11-Claw, 2-First interlocking arm, 21-Disc body, 22-Square column, 3-Close brake assembly, 31-Close limit plate, 32-Connecting rod , 4-Rotation assembly, 41-Interlocking mounting plate, 42-Rotating shaft, 43-Interlocking swing plate, 44-Interlocking pin, 45-Second interlocking arm, 46-Interlocking roller, 5-Transmission Component, 51-transmission rod, 511-pin hole, 52-interlocking plate, 521-vertical plate, 5211-first waist hole, 522-horizontal plate, 6-reset assembly, 61-fixed bent plate, 611- Support arm, 62-return spring, 7-pressing piece, 100-operating valve, 210-spindle, 220-closing drive assembly, 221-closing coil, 2211-closing coil push rod, 222-closing plastic parts, 223-closing connecting plate, 224-closing crank arm, 2241-connecting arm, 2242-closing energy storage detent, 225-closing cam, 2251-closing roller, 226-closing spring.

Detailed ways

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to Figure 1, Figure 2, Figure 3 and Figure 4, it is an integrated interlocking mechanism for an inflatable cabinet according to the present invention, which is used to realize the direct-acting three-station mechanism of the inflatable cabinet and the circuit breaker operating mechanism of the inflatable cabinet The integrated interlock mechanism of the inflatable cabinet includes a shutter card 1, a first interlocking arm 2, a closing brake assembly 3, a rotating assembly 4, a transmission assembly 5 and a reset assembly 6. The The shutter card is fixedly connected with the operating shutter 100 of the direct-acting three-station mechanism, the first interlocking arm is fixedly connected with the main shaft 210 of the circuit breaker operating mechanism, and the rotating assembly includes an interlocking mounting plate 41. The rotating shaft 42, the interlocking swing plate 43, the interlocking pin 44, the second interlocking arm 45 and the two interlocking rollers 46, the interlocking mounting plate is mounted on the frame of the circuit breaker operating mechanism. On the top, the rotating shaft is rotatably mounted on the interlocking mounting plate, the interlocking swing plate is mounted on one end of the rotating shaft, and the second interlocking arm is fixedly connected to the other side of the rotating shaft. Between one end and the interlocking pin, the two interlocking rollers are installed at both ends of the interlocking swing plate, and the interlocking pin is inserted and positioned in the claw 11 at the bottom of the shutter card plate ; the transmission assembly is arranged between the first interlocking arm and the two interlocking rollers, and the bottom end of the transmission assembly is vertically opposite to the first interlocking arm; the closing The brake assembly is installed in the middle of the transmission assembly; when the circuit breaker of the inflatable cabinet is closed, the first interlocking arm on the main shaft rotates to a position abutting the bottom end of the transmission assembly, so that the transmission The top of the assembly abuts the two interlocking rollers to brake the rotating shaft, the interlocking pin and the shutter card, so that the operating shutter cannot be opened; the circuit breaker of the inflatable cabinet is opened , and when the operating shutter needs to be opened, the first interlocking arm on the main shaft rotates to the position where it is separated from the bottom end of the transmission assembly, and the operating shutter can move left and right through the shutter card and the The interlocking pin drives the rotating shaft and the interlocking swing plate to rotate, so that one of the interlocking rollers drives the transmission assembly and the closing brake assembly downwards, so that the closing brake assembly is connected to the open circuit. The closing drive assembly 220 of the actuator operating mechanism brakes and stores energy in the reset assembly; the reset assembly releases the stored energy, which can drive the closing brake assembly, the transmission assembly and the rotating assembly to reset .

In the above structure, the first interlocking arm is provided on the main shaft of the circuit breaker operating mechanism, the shutter card is connected to the operating shutter of the direct-acting three-station mechanism, and the first interlocking arm and the shutter card are connected. The closing brake assembly, the rotating assembly, the transmission assembly and the reset assembly are arranged between them, so that when the circuit breaker of the inflatable cabinet is in the closed state, the function of the operating valve of the three-position mechanism cannot be opened. In the process of manually operating the three-position mechanism in the closing state, the function of the circuit breaker cannot be closed. Therefore, the present invention realizes the mechanical interlocking function between the direct-acting three-station mechanism and the circuit breaker operating mechanism, and has the advantages of simple structure, active interlocking, safety and reliability.

The working principle of the integrated interlocking mechanism of the inflatable cabinet of the present invention is as follows:

In the closed state of the circuit breaker, the first interlocking arm on the main shaft of the circuit breaker operating mechanism just rotates to the position where it touches the bottom end of the transmission assembly, for example, the first interlocking arm just faces upwards. At this time, the transmission assembly cannot be Move down so that the top of the transmission assembly just touches the two interlocking rollers, the rotating shaft cannot drive the interlocking swing plate and the interlocking pin to rotate, that is, the rotating shaft and the interlocking pin are braked, and the interlocking The pin is inserted and positioned in the claw at the bottom of the shutter card, so that the operating shutter cannot be opened, that is, the operating shutter of the three-station mechanism is locked, and the operating shutter cannot move left and right, and thus cannot be opened, so that the operating shutter blocks the three-station. If the operation hole of the grounding switch is isolated, the three-position mechanism cannot be operated.

In the open state of the circuit breaker, the first interlocking arm on the main shaft of the circuit breaker operating mechanism rotates to other positions and is separated from the bottom end of the transmission assembly. For example, the first interlocking arm is just facing down or to one side. The transmission assembly can move down, the operation valve can move left and right, the operation valve can drive the interlock pin, and then drive the rotating shaft and the interlock swing plate to rotate, that is, the operation valve of the three-position mechanism is unlocked, and the operation valve can be opened at this time. , operate the three-station mechanism. For example, when it is necessary to manually operate the three-position isolating grounding switch, move the operating valve to the right, so that the interlocking roller installed on the right side of the interlocking swing plate moves downwards, thereby driving the transmission assembly to move downwards. In order to ensure that the circuit breaker cannot be closed during the operation of the three-position mechanism, a closing brake assembly is provided in the present invention, that is, when the transmission assembly is driven downward, the closing brake assembly is driven to move downward at the same time, and the closing brake assembly is driven downward. The actuating component brakes the closing drive component of the circuit breaker operating mechanism, that is to say, when the three-position mechanism is operated, the closing function of the circuit breaker is locked to avoid touching the closing coil due to misoperation, or The backstage personnel misoperated, causing the circuit breaker to close.

In the above structure, the reset assembly is used to reset the transmission assembly, the closing brake assembly and the rotating assembly, so as to ensure that the closing brake assembly can unlock the closing drive assembly after the three-position mechanism is operated to close the shutter. And the rotating assembly can be reset to the initial position, even if the operating shutter is in the middle position, at this time, the operating shutter can block the operating hole of the three-position isolating grounding switch.

Preferably, the transmission assembly includes a transmission rod 51 and an interlocking plate 52, the interlocking plate includes a vertical plate 521 and a horizontal plate 522 formed on the top of the vertical plate, and the horizontal plate is provided at two Below the interlocking rollers, the top end of the transmission rod is fixedly connected to the vertical plate, and the bottom end of the transmission rod is vertically opposite to the first interlocking arm. In this way, the interlocking plate can realize the function of abutting two interlocking rollers at the same time, and the transmission rod can realize the function of cooperating with the first interlocking arm, and the transmission rod does not occupy much space and is easy to install the reset assembly.

Preferably, two first waist-shaped holes 5211 are formed on the vertical plate, and the vertical plate is fixedly connected to the transmission rod through fasteners passing through the first waist-shaped holes. In this way, the height of the transmission rod can be adjusted up and down according to the distance between the main shaft and the rotating assembly.

Preferably, the reset assembly includes a fixed bent plate 61 and a reset spring 62, the middle part of the fixed bent plate is mounted on the side wall of the frame of the circuit breaker operating mechanism, and the reset spring is provided on the fixed bent plate Between the two opposite support arms 611, the middle part of the transmission rod is movably passed through the return spring and the through holes of the two support arms, and the downward movement of the transmission rod can compress the return spring energy storage. In this way, through the cooperation of the transmission rod, the fixed bent plate and the return spring, the function of the reset transmission component driving the closing brake component to reset is realized. The fixed bending plate is provided with two opposite support arms, and the return spring is arranged between the two support arms, which can also play the role of limiting and guiding the transmission rod. As a preferred embodiment, the reset component is composed of a fixed bent plate 611 and a reset spring 62, which realizes the function of the reset component, but is not limited to this. In other structures, the reset component can also be composed of a fixed plate, a guide post and a reset spring. At this time, a connecting piece can be added to the transmission rod, the fixed plate can be installed on the frame of the circuit breaker operating mechanism, the guide post can be installed between the connecting piece and the fixed plate, and the return spring can be sleeved on the guide post , and is located between the connecting piece and the fixing plate.

Preferably, the structure that the transmission rod moves downward and compresses the energy storage of the return spring is as follows: a pressure pin and a pressure piece 7 are installed on the transmission rod, and the pressure pin and the pressure piece are arranged on two of the Between the arms, the pressing pin is installed in the pin hole 511 on the transmission rod, the pressing piece is movably sleeved on the driving rod, and the pressing piece is positioned at the top end of the return spring and between the press pins. In this way, by arranging a pin hole on the transmission rod and installing a pressure pin in the pin hole, when the pressure pin moves downward with the transmission rod, the pressing piece can be driven to compress the return spring to store energy.

Preferably, the closing brake assembly includes a closing limit plate 31 and a connecting rod 32, and the middle part of the closing limit plate is rotatably mounted on a spacer plate in the frame of the circuit breaker operating mechanism through a pin shaft , one end of the connecting rod is fixedly connected with the transmission rod, and the other end of the connecting rod is inserted into the second waist-shaped hole on the closing limit plate; the transmission rod drives the connecting rod downward When moving, the connecting rod drives the closing limit plate to rotate, so that the legs of the closing limit plate abut against the closing drive assembly.

Preferably, the closing drive assembly includes a closing coil 221, a closing plastic part 222, a closing connecting plate 223, a closing arm 224, a closing cam 225 and a closing spring (226). The closing plastic part , The closing arm and the closing cam are respectively rotated and installed on the frame of the circuit breaker operating mechanism. A closing roller 2251 is fixed on the cam; the two ends of the closing connecting plate are respectively rotatably connected to the closing plastic part and the connecting arm of the closing arm, and the closing spring elastically contacts the On one side of the closing roller, in the open state, the closing energy storage holding catch of the closing arm abuts on the opposite side of the closing roller; the closing coil is provided with There is a closing coil push rod 2211. When closing, the foot of the closing limit plate is separated from the braking point of the closing plastic part, and the closing coil drives the closing signal after receiving the closing signal. The brake coil push rod pushes the closing plastic part to rotate, and drives the closing arm to rotate through the closing connecting plate, so that the closing energy storage holding detent is separated from the closing roller, and at the same time all the The closing spring pushes the closing cam to rotate and hits the main roller on the main shaft to complete closing; in the open state, after opening the operating valve, the legs of the closing limit plate abut against the At the braking point of the closing plastic part, the closing coil push rod of the closing coil cannot push the closing plastic part to rotate. In this way, the locking and unlocking functions of the closing drive assembly are realized through the cooperation between the legs of the closing limit plate and the closing plastic parts of the closing drive assembly, thereby realizing the manual operation of the three-way circuit breaker in the open state of the circuit breaker. In the process of setting the mechanism, the function of the circuit breaker cannot be closed. In this embodiment, the cooperation between the closing limit plate and the closing plastic part of the gate drive assembly is adopted, but it is not limited to this. The fit between the crank arms.

Preferably, the transmission rod is square, the first interlocking arm includes a disc body 21 and a square column 22, the disc body is sleeved on the main shaft, and the square column is connected to the outer edge of the disc body On the top, the square column is vertically opposite to the bottom end of the transmission rod. In this way, through the cooperation of the square transmission rod and the square column of the first interlocking arm, the function of locking the transmission rod to move downward can be realized, but it is not limited to this, and other mutual cooperation can also be designed according to needs to prevent The connecting structure, the transmission rod can also be of other shapes.

In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the above descriptions are only preferred embodiments of the present invention, and the present invention can be implemented in many other ways than those described herein, so the present invention is not limited by the specific implementations disclosed above. At the same time, any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent implementation of equivalent changes. example. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention still fall within the protection scope of the technical solutions of the present invention.

Claims (8)

1. The utility model provides an aerify cabinet integral type interlocking device for realize aerifing the interlock between the circuit breaker operating device of three station mechanisms of direct action formula of cabinet and aerifing the cabinet, its characterized in that: the integrated interlocking mechanism of the gas charging cabinet comprises a valve clamping plate (1), a first interlocking connecting lever (2), a closing brake component (3), a rotating component (4), a transmission component (5) and a reset component (6), wherein the valve clamping plate is fixedly connected with an operating valve (100) of the direct-acting three-station mechanism, the first interlocking connecting lever is fixedly connected with a main shaft (210) of the circuit breaker operating mechanism, the rotating component comprises an interlocking mounting plate (41), a rotating shaft (42), an interlocking swinging plate (43), an interlocking pin (44), a second interlocking connecting lever (45) and two interlocking rollers (46), the interlocking mounting plate is mounted on the top of a frame of the circuit breaker operating mechanism, the rotating shaft is rotatably mounted on the interlocking mounting plate, the interlocking swinging plate is mounted at one end of the interlocking rotating shaft, and the second interlocking connecting lever is fixedly connected between the other end of the rotating shaft and the interlocking pin, the two interlocking rollers are arranged at two ends of the interlocking swinging plate, and the interlocking pin is inserted into a clamping jaw (11) positioned at the bottom of the valve clamping plate; the transmission assembly is arranged between the first interlocking crank arm and the two interlocking rollers, and the bottom end of the transmission assembly is vertically opposite to the first interlocking crank arm; the closing brake assembly is arranged in the middle of the transmission assembly; when a breaker of the gas charging cabinet is switched on, a first interlocking crank arm on the main shaft rotates to a position abutting against the bottom end of the transmission assembly, so that the top end of the transmission assembly abuts against the two interlocking rollers, the rotating shaft, the interlocking pin and the valve clamping plate are braked, and the operating valve cannot be opened; when the operating valve needs to be opened, a first interlocking connecting lever on the main shaft rotates to a position where the first interlocking connecting lever is separated from the bottom end of the transmission assembly, the operating valve moves left and right and can drive the rotating shaft and the interlocking swing plate to rotate through the valve clamping plate and the interlocking pin, one interlocking roller drives the transmission assembly and the closing brake assembly downwards, the closing brake assembly brakes a closing driving assembly (220) of the operating mechanism of the circuit breaker, and the reset assembly stores energy; and the reset assembly releases stored energy and can drive the closing brake assembly, the transmission assembly and the rotating assembly to reset.

2. An inflatable cabinet integrated interlock mechanism as claimed in claim 1, wherein: the transmission assembly comprises a transmission rod (51) and an interlocking plate (52), the interlocking plate comprises a vertical plate (521) and a horizontal plate (522) formed at the top of the vertical plate, the horizontal plate is arranged below the two interlocking rollers, the top end of the transmission rod is fixedly connected with the vertical plate, and the bottom end of the transmission rod is vertically opposite to the first interlocking crank arm.

3. An inflatable cabinet integrated interlock mechanism as claimed in claim 2, wherein: two first kidney-shaped holes (5211) are formed in the vertical plate, and the vertical plate is fixedly connected with the transmission rod through fasteners penetrating through the first kidney-shaped holes.

4. An inflatable cabinet integrated interlock mechanism as claimed in claim 2, wherein: reset assembly is including fixed bent plate (61) and reset spring (62), the mid-mounting of fixed bent plate in on the lateral wall of circuit breaker operating device's frame, reset spring locates between two relative support arms (611) of fixed bent plate, the middle part activity of transfer line is worn to locate reset spring and two in the through-hole of support arm, the transfer line removes down and can compress reset spring energy storage.

5. An inflatable cabinet integrated interlock mechanism as claimed in claim 4, wherein: the structure that the transmission rod moves downwards to compress the return spring for storing energy is as follows: the transmission rod is provided with a pressing pin and a pressing sheet (7), the pressing pin and the pressing sheet are arranged between the two support arms, the pressing pin is arranged in a pin hole (511) in the transmission rod, the pressing sheet is movably sleeved on the transmission rod, and the pressing sheet is positioned between the top end of the reset spring and the pressing pin.

6. An inflatable cabinet integrated interlock mechanism as claimed in claim 2, wherein: the closing brake assembly comprises a closing limiting plate (31) and a connecting rod (32), the middle part of the closing limiting plate is rotatably installed on a partition plate in a frame of the circuit breaker operating mechanism through a pin shaft, one end of the connecting rod is fixedly connected with the transmission rod, and the other end of the connecting rod penetrates through a second kidney-shaped hole in the closing limiting plate; when the transmission rod drives the connecting rod to move downwards, the connecting rod drives the closing limiting plate to rotate, and the support leg of the closing limiting plate abuts against the closing driving assembly.

7. An inflatable cabinet integrated interlock mechanism as claimed in claim 6, wherein: the closing driving assembly comprises a closing coil (221), a closing plastic part (222), a closing connecting plate (223), a closing connecting lever (224), a closing cam (225) and a closing spring (226), the closing plastic part, the closing connecting lever and the closing cam are respectively and rotatably mounted on a frame of the circuit breaker operating mechanism, the closing connecting lever is provided with a connecting arm (2241) and a closing energy storage retaining pawl (2242) which form an obtuse included angle, and a closing roller (2251) is fixed on the closing cam; two ends of the closing connecting plate are respectively and rotatably connected to the connecting arm of the closing plastic part and the closing connecting lever, the closing spring is elastically abutted against one side surface of the closing roller, and the closing energy storage retaining pawl of the closing connecting lever is abutted against the other side surface opposite to the closing roller in the opening state; a closing coil push rod (2211) is arranged on the closing coil, when closing is performed, a support leg of the closing limiting plate is separated from a brake point of the closing plastic part, the closing coil drives the closing coil push rod to push the closing plastic part to rotate after receiving a closing signal, and drives the closing connecting lever to rotate through the closing connecting plate, so that the closing energy storage holding pawl is separated from the closing roller, and meanwhile, the closing spring pushes the closing cam to rotate and impact the main roller on the main shaft, and closing is completed; and in the switching-off state, after the operating valve is opened, the support leg of the switching-on limiting plate is abutted to the braking point of the switching-on plastic part, so that the switching-on coil push rod of the switching-on coil cannot push the switching-on plastic part to rotate.

8. An inflatable cabinet integrated interlock mechanism as claimed in claim 2, wherein: the transmission rod is square, the first interlocking connecting lever comprises a disc body (21) and a square column (22), the disc body is fixedly sleeved on the main shaft, the square column is connected to the outer edge of the disc body, and the square column is opposite to the bottom end of the transmission rod up and down.

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